夏普GP2Y1010AU0F_粉尘传感器参考程序

夏普GP2Y1010AU0F_粉尘传感器参考程序简介：

Sharp's GP2Y1010AU0F 是一款光学空气质量传感器，设计用来感应空气中的尘埃粒子，其内部对角安放着红外线发光二极管和光电晶体管，使得其能够探测到空气中尘埃反射光，即使非常细小的如烟草烟雾颗粒也能够被检测到，通常在空气净化系统中应用。

该传感器具有非常低的电流消耗（最大20mA，典型值11mA），可使用高达7VDC。该传感器输出为模拟电压，其值与粉尘浓度成正比。

可测量0.8微米以上的微笑粒子,感知烟草产生的咽气和花粉,房屋粉尘等.体积小,重量轻,便于安装，广泛应用于空气清新机,换气空调,换气扇等产品.

灵敏度：

0.5V/0.1mg/m3

尺寸:

46.0 × 30.0 × 17.6 mm)

Do not miss the 150ohm resistor and a 220uF capacitor

Sensor Pin Arduino Pin

1Vled–>5V (150ohm

resistor)

2LED-GND–>GND

3LED–>Digital pin 2

4S-GND–>GND

5Vo–>Analog pin 0

6Vcc–>5V

The LED pin has to be modulated with a cycle of 1ms as discussed in the datasheet.

The LED seems to use a PNP transistor so to power on, the LED pin must actually recieve a lower voltage.

例程;

int dustPin=0;

int dustVal=0;

int ledPower=2;

int delayTime=280;

int delayTime2=40;

float offTime=9680;

void setup(){

Serial.begin(9600);

pinMode(ledPower,OUTPUT);

pinMode(4, OUTPUT);

}

void loop(){

// ledPower is any digital pin on the arduino connected to Pin 3 on the sensor

digitalWrite(ledPower,LOW); // power on the LED delayMicroseconds(delayTime);

dustVal=analogRead(dustPin); // read the dust value via pin 5 on the sensor

delayMicroseconds(delayTime2);

digitalWrite(ledPower,HIGH); // turn the LED off delayMicroseconds(offTime);

delay(3000);

Serial.println(dustVal);

}